– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Tue 20 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Tue 20 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Tue 20 Jan Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Very mild (max 14°C on Tue morning, min 4°C on Thu night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Very mild (max 10°C on Fri morning, min 4°C on Sun night). Wind will be generally light. | |||||||||||||||||
Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | | |  | | | | | | |  | |  | |
some clouds | clear | clear | some clouds | clear | cloudy | clear | some clouds | some clouds | clear | clear | clear | some clouds | some clouds | some clouds | cloudy | cloudy | light rain | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | |
max °C | 14 | 12 | 8 | 10 | 9 | 7 | 9 | 7 | 5 | 10 | 8 | 5 | 9 | 8 | 6 | 9 | 8 | 6 |
min °C | 11 | 9 | 7 | 9 | 7 | 6 | 7 | 5 | 4 | 7 | 5 | 5 | 8 | 6 | 6 | 8 | 7 | 4 |
11 | 9 | 7 | 9 | 7 | 6 | 7 | 5 | 3 | 7 | 5 | 4 | 8 | 6 | 6 | 8 | 5 | 1 | |
3000 | 2850 | 2750 | 2550 | 2500 | 2300 | 2100 | 1950 | 1850 | 2050 | 2150 | 2250 | 2300 | 2300 | 2400 | 2150 | 1950 | 1500 | |
Cloud base (m) | 6300 | 6950 | 6500 | 5550 | 5000 | 4700 | 4600 | 6850 | 7850 | 8000 | 6800 | 5700 | 3250 | 1900 | ||||
 | 7:50 | — | — | 7:50 | — | — | 7:48 | — | — | 7:48 | — | — | 7:47 | — | — | 7:46 | — | — |
 | — | 4:46 | — | — | 4:47 | — | — | 4:50 | — | — | 4:52 | — | — | 4:52 | — | — | 4:54 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Very mild (max 14°C on Tue morning, min 4°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 4mm), mostly falling on Sun night. Very mild (max 10°C on Fri morning, min 4°C on Sun night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.